An article published in the journal “Physical Review X (PRX)” proposes what is called a postquantum theory of classical gravity. Professor Jonathan Oppenheim of University College London (UCL) offers a different approach to that adopted by most of his colleagues by proposing to modify quantum theory to unify it with relativistic gravity. An article published in the journal “Nature Communications” offers some reflections from Professor Oppenheim’s former Ph.D. students on the consequences of his theory and proposes an experiment to verify it.